This is a prayer that is said at every Traditional Latin Mass;
I confess to Almighty God, to Blessed Mary ever Virgin, to Blessed Michael the Archangel, to Blessed John the Baptist, to the Holy Apostles Peter and Paul, to all the angels and saints, and to you, brethren, that I have sinned exceedingly in thought, word, deed: through my fault, through my fault, through my most grievous fault, and I ask Blessed Mary ever Virgin, Blessed Michael the Archangel, Blessed John the Baptist, the Holy Apostles Peter and Paul, all the Angels and you, brethren, to pray to the Lord our God for me.
If you have a problem asking saints to pray for you, that's your problem.
If you have a problem accepting that fact, then that's your problem.
But just wow. Can't you see what happened among "the Church"? Communion of the saints did not originally include direct appeals to them for anything, but instead such as were listed (and many others besides) were mentioned and prayed about and concerning, the prayers directed not to those persons, but towards the Creator in thankfulness and with plea from the living (those still living upon earth) that He not forget those who had gone on, before.
You had just said you were not polytheist.
If not that in effect, how much closer could one be -- short of ancient Grecian, and Roman direct appealing and offering sacrifice to mortals who had been elevated to god-hood status?.
Hinduism, perhaps?
If you have NO problem asking dead people to pray for you, that's just might be a problem.